Cutter blade



FIG. 1 is a perspective view of a cutter blade of the present design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a sectional view taken along line A-A of FIG. 2 .

The broken lines shown in FIGS. 1-8 illustrate portions of the cutterblade that form no part of the claimed design.

CLAIM The ornamental design for a cutter blade, as shown and described.